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Fixation of the fully hydroxyapatite-coated Corail stem implanted due to femoral neck fracture 38 patients followed for 2 years with RSA and DEXA

von Schewelov, Thord LU ; Ahlborg, Henrik LU ; Sanzén, Lennart LU ; Besjakov, Jack LU and Carlsson, Åke LU (2012) In Acta Orthopaedica 83(2). p.153-158
Abstract
Background Today, dislocated femoral neck fractures are commonly treated with a cemented hip arthroplasty. However, cementing of the femoral component may lead to adverse effects and even death. Uncemented stems may lower these risks and hydroxyapatite (HA) coating may enhance integration, but prosthetic stability and clinical outcome in patients with osteoporotic bone have not been fully explored. We therefore studied fixation and clinical outcome in patients who had had a femoral neck fracture and who had received a fully HA-coated stem prosthesis. Patients and methods 50 patients with a dislocated femoral neck fracture were operated with the fully HA-coated Corail total or hemiarthroplasty. 38 patients, mean age 81 (70-96) years, were... (More)
Background Today, dislocated femoral neck fractures are commonly treated with a cemented hip arthroplasty. However, cementing of the femoral component may lead to adverse effects and even death. Uncemented stems may lower these risks and hydroxyapatite (HA) coating may enhance integration, but prosthetic stability and clinical outcome in patients with osteoporotic bone have not been fully explored. We therefore studied fixation and clinical outcome in patients who had had a femoral neck fracture and who had received a fully HA-coated stem prosthesis. Patients and methods 50 patients with a dislocated femoral neck fracture were operated with the fully HA-coated Corail total or hemiarthroplasty. 38 patients, mean age 81 (70-96) years, were followed for 24 months with conventional radiographs, RSA, DEXA, and for clinical outcome. Results 31 of the 38 implants moved statistically significantly up to 3 months, mainly distally, mean 2.7 mm (max. 20 mm (SD 4.3)), and rotated into retroversion mean 3.3 (-1.8 to 17) (SD 4.3) and then appeared to stabilize. Distal stem migration was more pronounced if the stem was deemed to be too small. There was no correlation between BMD and stem migration. The migration did not result in any clinically adverse effects. Interpretation The fully hydroxyapatite-coated Corail stem migrates during the first 3 months, but clinical outcome appears to be good, without any adverse events. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Acta Orthopaedica
volume
83
issue
2
pages
153 - 158
publisher
Taylor & Francis
external identifiers
  • wos:000303242700010
  • scopus:84860241707
ISSN
1745-3682
DOI
10.3109/17453674.2011.641107
language
English
LU publication?
yes
id
63e7f58e-3768-443b-9e84-9cc2a477c393 (old id 2570256)
date added to LUP
2012-06-01 08:50:37
date last changed
2017-08-13 04:00:14
@article{63e7f58e-3768-443b-9e84-9cc2a477c393,
  abstract     = {Background Today, dislocated femoral neck fractures are commonly treated with a cemented hip arthroplasty. However, cementing of the femoral component may lead to adverse effects and even death. Uncemented stems may lower these risks and hydroxyapatite (HA) coating may enhance integration, but prosthetic stability and clinical outcome in patients with osteoporotic bone have not been fully explored. We therefore studied fixation and clinical outcome in patients who had had a femoral neck fracture and who had received a fully HA-coated stem prosthesis. Patients and methods 50 patients with a dislocated femoral neck fracture were operated with the fully HA-coated Corail total or hemiarthroplasty. 38 patients, mean age 81 (70-96) years, were followed for 24 months with conventional radiographs, RSA, DEXA, and for clinical outcome. Results 31 of the 38 implants moved statistically significantly up to 3 months, mainly distally, mean 2.7 mm (max. 20 mm (SD 4.3)), and rotated into retroversion mean 3.3 (-1.8 to 17) (SD 4.3) and then appeared to stabilize. Distal stem migration was more pronounced if the stem was deemed to be too small. There was no correlation between BMD and stem migration. The migration did not result in any clinically adverse effects. Interpretation The fully hydroxyapatite-coated Corail stem migrates during the first 3 months, but clinical outcome appears to be good, without any adverse events.},
  author       = {von Schewelov, Thord and Ahlborg, Henrik and Sanzén, Lennart and Besjakov, Jack and Carlsson, Åke},
  issn         = {1745-3682},
  language     = {eng},
  number       = {2},
  pages        = {153--158},
  publisher    = {Taylor & Francis},
  series       = {Acta Orthopaedica},
  title        = {Fixation of the fully hydroxyapatite-coated Corail stem implanted due to femoral neck fracture 38 patients followed for 2 years with RSA and DEXA},
  url          = {http://dx.doi.org/10.3109/17453674.2011.641107},
  volume       = {83},
  year         = {2012},
}